From 1e2a6dc5d2707c64fd950dc0841623fdc856367a Mon Sep 17 00:00:00 2001
From: zymon <s@zymon.org>
Date: Tue, 27 Aug 2024 14:36:52 +0200
Subject: [PATCH] completion engine

---
 lua/znvim/plugins/cmp.lua | 62 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 lua/znvim/plugins/cmp.lua

diff --git a/lua/znvim/plugins/cmp.lua b/lua/znvim/plugins/cmp.lua
new file mode 100644
index 0000000..9822c41
--- /dev/null
+++ b/lua/znvim/plugins/cmp.lua
@@ -0,0 +1,62 @@
+return {
+
+    {
+        "https://github.com/hrsh7th/nvim-cmp",
+        dependencies = {
+            "https://github.com/hrsh7th/cmp-buffer",
+            "https://github.com/hrsh7th/cmp-path",
+            "https://github.com/hrsh7th/cmp-cmdline",
+        },
+        event = { "InsertEnter", "CmdlineEnter", "BufReadPost" },
+        config = function()
+            local cmp = require("cmp")
+            cmp.setup({
+                preselect = cmp.PreselectMode.None,
+                mapping = cmp.mapping.preset.insert({
+                    ["<C-b>"] = cmp.mapping.scroll_docs(-4),
+                    ["<C-f>"] = cmp.mapping.scroll_docs(4),
+                    ["<C-space>"] = cmp.mapping.complete(),
+                    ["<CR>"] = cmp.mapping.confirm({ select = false }),
+                    ["<C-e>"] = cmp.mapping.abort(),
+                }),
+                sources = cmp.config.sources({
+                    {
+                        name = "buffer",
+                        option = { keyword_length = 3 },
+                    },
+                }),
+                window = {
+                    completion = cmp.config.window.bordered(),
+                    documentation = cmp.config.window.bordered(),
+                },
+                formatting = {
+                    fields = { "kind", "abbr", "menu" },
+                    format = function(entry, item)
+                        item.kind = item.kind
+                        item.menu = ({
+                            buffer   = "[buf]",
+                            path     = "[path]",
+                            cmdline  = "[cmd]",
+                        })[entry.source.name] or entry.source.name
+                        return item
+                    end,
+                },
+            })
+
+            cmp.setup.cmdline('/', {
+                mapping = cmp.mapping.preset.cmdline(),
+                sources = {
+                    { name = 'buffer' }
+                }
+            })
+            cmp.setup.cmdline(':', {
+                mapping = cmp.mapping.preset.cmdline(),
+                sources = cmp.config.sources({
+                    { name = 'path' },
+                    { name = 'cmdline' }
+                })
+            })
+        end
+    },
+
+}